Philipp Humm is setting down from the post of the chief executive of T-Mobile USA, two years after taking over the telecom service provider.

The company said on Wednesday that Mr. Humm is leaving the company for personal reasons to spend more time with his family. Mr. Humm has faced a dissficult task when he took over as the CEO of the company from Robert Dotson in 2010. The company has faced he problems with customer cancellations and the parent company has considered various options including buying rival, Sprint or an IPO.

Mr. Humm did not have much in his hands as the company was waiting for approval from March to December 2011 to be acquired by AT&T. Deutsche Telekom and AT&T announced plans in March 2010 that AT&T will acquire T-Mobile USA for $39 billion but the deal could not cross regulatory hurdles.

The company laso said that Jim Alling, who is the chief operating officer of T-Mobile USA, will replace Mr. Humm as the chief executive officer of the company on an interim basis while the company looks for a new CEO.

Deutsche Telekom CEO Rene Obermann said that Mr. Humm had informed his decision to leave the company in April and is leaving to join a competitor firm. T-Mobile USA is owned by German parent Deutsche Telekom. Mr. Obermann also said that the discussions with a potential successor were promising.